Is there a time difference in satellite broadcasting?

pu1. I don't think there will be a time difference with the speed of 3 x 10^8 m/s, which is the speed of light in the atmosphere. But the actual speed seems to be two to three seconds apart. For example, when you show the weather on the news, you talk to a reporter live, and when the anchor calls a reporter, you talk to him in a few seconds

2017-12-15

OK

pu2. There's a few seconds difference. The reason is probably because the satellite sends radio waves to the satellite, which receives them and sends them back, but it moves at the speed of light in the atmosphere, but passes through the ionosphere when it is shot by the satellite. This is because, in the case of propagating in ionized gases such as the ionosphere, the rate at which the wave energy is transmitted is a little slower than in the atmosphere

2017-12-15

OK